But I cannot loggin from Windows 11 because THIS IS A PROBLEM WHICH NEED TO BE SOLVE
Hello @andrey
Welcome to the LastPass Community.
Based on the case history and your recent login activity, it appears you were able to deactivate the MFA requirement in order to log in and re-sync the MFA selection again, under the account XXXXXXXXn@gmail.com.
If you should get stuck again, you may utilize the 'Request help' button within the LastPass Authenticator Lockout article to receive email support.